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top fin pf-l filter cartridges
Skip itBrand-locked demand (top 5 brands take 98% of clicks) — this niche doesn't clear our bar today.
Conversion
Incredible17.1%search→purchase rate — share of searches ending in a sale
Returns
Great1.4%return rate — above 6% kills the launch gate
Avg price
Great$19.18avg listing price — sweet spot $15–$100
Price range
Good$9.54–$29.25cheapest to priciest tracked listing — scored on the share inside $15–$100
Review moat
Good1,337.83avg incumbent reviews — the moat a new listing must climb
Market size
Okay$150K$150K/yr · 46K searches
Growth
Okay+1.3%90-day search growth — must beat 0% to launch
Quality gap
Bad4.6★avg incumbent rating — lower means beatable quality
Competition
Bad81%top-5 click share — a locked-up shelf
Brand share
Bad98%top-5 brand share — brand-locked demand